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. 2016 Oct 7;7:13083. doi: 10.1038/ncomms13083

Figure 5. Different possible biosynthetic relationships between 1 and 2.

Figure 5

(i) 2 being generated by the oxidative N–C coupling of benzoic acid and 1, (ii) 1 generated by the reductive N–C cleavage of 2 and (iii) both 1 and 2 arising from divergent amination of 4.